EXPECTED BEHAVIOR:
animateColor will begin at 1 second and have a duration of 2 seconds.
note additive=sum so all colors have a red value of FF.
At 0 seconds, the color will be RED - #FF0000.
Just after 1 second, animateColor begins and the color will imediately turn to #FFFF00.
At 1.5 seconds, the midpoint of animateColor, the color value will be #FF00FF.
At 3 seconds, the color will still be #FF00FF and animateColor Ends.
After animateColor ends, the timedElement should REMOVE, leaving the color RED.
**Note: calcmode="discrete" color values jump from one to the next without animation